What’s Vulnerable › Vulnerabilities

CVE-2025-61677: DataChain: Deserialization of Untrusted Data from Environment Variables

• Severity: low (CVSS 2.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-10-03 · updated 2026-10-08
• Weakness: CWE-502

Description

DataChain is a Python-based AI-data warehouse for transforming and analyzing unstructured data. Versions 0.34.1 and below allow for deseriaization of untrusted data because of the way the DataChain library reads serialized objects from environment variables (such as DATACHAIN__METASTORE and DATACHAIN__WAREHOUSE) in the loader.py module. An attacker with the ability to set these environment variables can trigger code execution when the application loads. This issue is fixed in version 0.34.2.

Affected products

• iterative datachain: before 0.34.2

References

• https://github.com/iterative/datachain/commit/914b95610620d50c8d9bee506ccbfa7d4d57fdc0
• https://github.com/iterative/datachain/pull/1358
• https://github.com/iterative/datachain/security/advisories/GHSA-6px8-mr29-cj4r

Get alerted when CVE-2025-61677 or the next vulnerability affects your stack